我对Java，Android和eclipse完全陌生。在做最初的Hello，Android教程时，我去运行并得到以下内容：
WARNING: Data partition already in use. Changes will not persist!
WARNING: Cache partition already in use. Changes will not persist!
转到DDMS透视图，单击屏幕捕获相机图标旁边的向下箭头，然后从下拉菜单中选择重置adb。
我的apk文件也没有部署，重置adb解决了它。:)
更简单的修复：在Windows中打开命令提示符（cmd.exe）。在 Linux 中打开终端。在 SDK 文件夹中找到 。.adb.exe\android-sdk\platform-tools\abd.exe
cd <sdk directory> (move to the folder listed above)
dir (to make sure abd.exe is in that directory)
adb kill-server (stop the abd service, won't return anything)
adb start-server (start the abd service back up, should give a couple of readings)
然后重新测试，问题解决了！
